CJ

Charles J. Johnston

DF Delaware Capital Formation: 14 patents #8 of 626Top 2%
ET Everett Charles Technologies: 14 patents #2 of 13Top 20%
EP Everett/Charles Contact Products: 6 patents #2 of 5Top 40%
📍 Walnut, CA: #10 of 870 inventorsTop 2%
🗺 California: #14,433 of 386,348 inventorsTop 4%
Overall (All Time): #103,796 of 4,157,543Top 3%
34
Patents All Time

Issued Patents All Time

Showing 1–25 of 34 patents

Patent #TitleCo-InventorsDate
8523579 Spring contact assembly Scott Chabineau, Valts Treibergs, Sergey Yakushev, Mark A. Swart, Edward A. Kottmeyer 2013-09-03
8231416 Spring contact assembly Scott Chabineau, Valts Treibergs, Sergey Yakushev, Mark A. Swart, Edward A. Kottmeyer 2012-07-31
8105119 Flat plunger round barrel test probe Mark A. Swart, Steve B. Sargeant 2012-01-31
7862391 Spring contact assembly Scott Chabineau, Valts Treibergs, Sergey Yakushev, Mark A. Swart, Edward A. Kottmeyer 2011-01-04
6462567 Self-retained spring probe Gordon A. Vinther, Scott Chabineau, Brian L. Crisp 2002-10-08
6414504 Coaxial tilt pin fixture for testing high frequency circuit boards 2002-07-02
6396293 Self-closing spring probe Gordon A. Vinther, Scott Chabineau 2002-05-28
6271672 Biased BGA contactor probe tip Mark A. Swart, Gordon A. Vinther 2001-08-07
6204680 Test socket Mark A. Swart, Gordon A. Vinther, Steve B. Sargeant, Roy W. Green 2001-03-20
6084421 Test socket Mark A. Swart, Gordon A. Vinther, Steve B. Sargeant 2000-07-04
D422230 Coaxial test probe 2000-04-04
5865641 Solid spring electrical contacts for electrical connectors and probes Mark A. Swart 1999-02-02
D400811 Test probe plunger tip Mark A. Swart, Gordon A. Vinther 1998-11-10
5781023 Hollow plunger test probe Mark A. Swart, Gordon A. Vinther, Byron C. Sanderson 1998-07-14
D395016 Coaxial test probe with quadrature ground provision Robert R. Kornowski, Damian Santay 1998-06-09
5667410 One-piece compliant probe 1997-09-16
5663655 ESD protection for universal grid type test fixtures Mark A. Swart, Patrick R. Gocha 1997-09-02
5557211 Vacuum test fixture for printed circuit boards Mary E. Ferrer, Gary F. St. Onge, Mark A. Swart 1996-09-17
5444387 Test module hanger for test fixtures David R. Van Loan, Mark A. Swart 1995-08-22
5422575 Test fixture with adjustable bearings and optical alignment system Mary E. Ferrer, Gary F. St. Onge, Mark A. Swart 1995-06-06
5408189 Test fixture alignment system for printed circuit boards Mark A. Swart, David R. Van Loan 1995-04-18
5391995 Twisting electrical test probe with controlled pointing accuracy Mark A. Swart 1995-02-21
5321351 Test fixture alignment system Mark A. Swart, David R. Van Loan 1994-06-14
5300881 Test fixture Mary E. Ferrer, Gary F. St. Onge, Mark A. Swart 1994-04-05
5289117 Testing of integrated circuit devices on loaded printed circuit David R. Van Loan, Mark A. Swart 1994-02-22